1)methanophone['neθənə,fəun],沼气信号器2)electroller,电气信号器3)Biogas analyzer,沼气分析器4)biogas water heater,沼气热水器5)biogas burner,沼气燃烧器6)firedamp detector,沼气检查器
用法和例句
With the beginning of the market analysis, the direction of development of biogas water heater then has been expounded from the technical and economic aspects.